Write the correct default subnet mask for each of the following addresses:

1- Configure the 8255 as the following port A as Output, B as Input, and all the bits of port C as Output assuming a base address of 3A0h. What is the correct code that read a value from port B and then output is to both port A and port C 3020181 MOV AL, 82h OUT 3A3,AL IN AL, 3A1 OUT 3A0, AL OUT 3A2, AL b) None Of Above MOV AL, 90h C) OUT 53,AL IN AL, 51 OUT 50, AL OUT 52, AL d) MOV AL, 81h OUT 3A2,AL IN AL, 3A1 OUT 3A0, AL OUT 3A3, AL Boş bırak

The last 3 octets in MAC address is belong to serial number. Select one: O True O False

2. For each of the following, write the ONE correct answer. a) TCP/IP layers are Internet (I), Transport (T), Application (A), Physical (P), Network Interface (N). Which layer deals with modulation in WiFi networks? The layer whose header contains the source MAC address is Answer= Answer= b) The leftmost and rightmost bits in a byte are MSbit and LSbit respectively. For the 2 bytes 10000000 00000001, assume that the first byte is MSbyte and the second byte is LSByte. Assuming that bits are transmitted from left to right, write the transmission order that is bit big endian and byte little endian: Answer= c) Let TP=unshielded twisted pair, CC=coaxial cable, F=fiber, L=lasercommunication. Which of these media Uses a shield for limiting interference Achieves the highest bandwidth across long distances Answer= Answer= d) Of FDMA, CDMA, TDMA and SM (statistical multiplexing), which method is multiplexing primarily based on in LTE networks? Answer= e) Which particular form of FDM is used over…

The following paging system has 64KB main memory, which is divided into 16 frames (frame numbers are from 0 to 15). Suppose the process A has 4 pages. The page numbers are 0, 1, 2, and 3, which are loaded to frame 9, 0, 1, and 14, respectively. What is the length of process A? (ii) For logical addresses 0001 0000 0100 1000 and 0011 0000 0110 0011 (all logical addresses are binary values), convert them to the physical address in the main memory.

The address returned to the caller of z on line 9 is 33792 (beginning of free memory block) + 1k (header) = 34816.this doesn't follow the line 5 and line 7. Could you please explain why 33792 returned to in line 9 and 32k in line 5 and 7?thank you

please don't copy the answer cuz its not right and clrear

52. Multiplexing STS-1 multiple data streams, called tributaries, plays an important role in SONET. A 3:1 multiplexer multiplexes three input STS-1 tributaries onto one out- put STS-3 stream. This multiplexing is done byte for byte. That is, the first three out- put bytes are the first bytes of tributaries 1, 2, and 3, respectively. the next three out- put bytes are the second bytes of tributaries 1, 2, and 3, respectively, and so on. Write a program that simulates this 3:1 multiplexer. Your program should consist of five processes. The main process creates four processes, one each for the three STS-1 tri- butaries and one for the multiplexer. Each tributary process reads in an STS-1 frame from an input file as a sequence of 810 bytes. They send their frames (byte by byte) to the multiplexer process. The multiplexer process receives these bytes and outputs an STS-3 frame (byte by byte) by writing it to standard output. Use pipes for communi- cation among processes.

Suppose a file of 10,000 bytes is to be sent over a line at 2400 bps. A. Calculate the overhead in bits and time in using asynchronous communication. Assume one start bit and a stop element of length one bit, and 8 bits to send the byte itself for each character. The 8-bit character consists of all data bits, with no parity bit. B. Calculate the overhead in bits and time using synchronous communication. Assume that the data are sent in frames. Each frame consists of 1000 characters = 8000 bits and an overhead of 48 control bits per frame. C. What would the answers to parts (a) and (b) be for a file of 100,000 characters?

Can the following code sequence execute without stalling or forwarding ? addi x18, x0, 1addi x19, x0, 2addi x20, x0, 2addi x21, x0, 4addi x22, x0, 5